Wall-socket.



J. KENNEDY.

WALL SOCKET.

APPLICATION FILED 1111130, 1912.

b52330, Patented Feb-l1,1913

"ill/L ll 1 WITNESSES Z (5435mm? ATTORNEY I a part thereof.

JOSEPH KENNEDY, 0F NEW YORK, N. Y,

WALL-SOCKET.

Specification of Letters Patent.

Application filed July 30, 1912. Serial No. 712,365.

To all whom it may concern:

Be it known that I, JOSEPH KENNEDY, a citizen of the United States, anda resident of New York, county and State of New York, have inventedcertain new and useful Improvements in Wall-Sockets, of which thefollowin is a specification, reference being had to t e accompanyingdrawing, forming My invention relates to wall sockets and its object isto provide a simple device which may be readily inserted in and securedto a wall of brick, cement, or the like, by means of which desiredobjects may be fastened to such a wall.

I will describe the invention in the following specification and pointout the novel features thereof in appended claims.

Referring to the drawings: Figure 1- is a side elevation of a wallsocket made according to my invention secured in position in a wallwhich is shown in section in this figure and with a threaded boltinserted in the socket. Fig. 2 is a sectional side elevation, and Fig. 3a sectional end view of'the socket which is shown in Fig. 1. The sectionin Fig. 3 is taken on the line 3-3 of Fig. 2. Figs. 4 and 5 are sideelevations of sockets similarto those shown in the preceding figures,but with the external grooves thereof somewhat modified in form. In Fig.6 a further modification of construction is illustrated in sideelevation. In this case the socket is constructed of a plurality ofparts. Fig. 7 is a sectional end elevation of that form of my inventionwhich is shown in Fig. 6, the section in this figure being taken on theline 7--7 of Fig. 6.

Like characters of reference designate corresponding parts in all thefigures.

10 designates a wall of such material that objects cannot be readilyaffixed thereto by the simple use of screws or nails. My invention in asimple form comprises a tubular shell 11 which is interiorly threaded asis shown at 12. On the outside of this shell grooves 13 are providedwhich are preferably longitudinally disposed and equally spaced aboutthe periphery of the shell. These grooves run through to one end of theshell which'will be called the front end, and extend through the greaterportion of Patented Feb. 11, 1913.

its length, but preferably not through the entire length of the shell.In the drawings four of these grooves are shown spaced 90 degrees apart.

The foregoing description applies generally to all of the figures of thedrawings and specifically to Figs. 1, 2 and 3. Before specificallydescribing the other figures I will briefly describe the operation ofthis device and the manner in which it is used. First a hole 14 isdrilled or otherwise formed in the wall 10 of sufiicient depth toreceive the shell 11, and of a diameter but slightly greater than theexternal diameter of the shell. The shell is-then inserted in this holewith its front end flush with the outer surface of the wall. When inthis position wedges 15 conveniently in the form of ordinary out nailsare driven into the grooves and between the base of these grooves andthe adjacent portions of the wall. In this manner the shell is securelyaflixed to the 'wall. Such portions of the wedges or nails 15 as projectbeyond the surface of the wall, and as appear in Fig. 1 in dotted lines,may be cut off. The socket is now ready for use as a fastening device.It may be constructed in any desired manner for the purpose ofperforming this part of its function It is not essential that it behollow but in its m ferred form it is constructed as shown with interiorscrew threads into which the shank 16 of bolt may be inserted for thepurpose of securing any desired object to the wall.

In the modification shown in Fig. 4, the shell 11 is constructed asbefore, but in this case the grooves 17 are tapered, that is, they aredeeper at the front end of the shell so that a wire nail or the like maybe used to wedge the shell into the hole 14.

It is not essential that the grooves be parallel with the axis of theshell and in Fig.

5 the grooves 18 although in substantially longitudinal positions, arecut spirally. This construction has the advantage of bending the wedgesslightly when they are inserted so that they are more securely held I.in place.

For convenience in manufacture, the shell may be made in two or moreparts. In Figs.

6 and 7 it is shown made in-two halves 11 and 11 When thus made andprovided with internal screw-threads, the latter may adapted to beinserted in a cylindrical re cess, having a screw-threaded interiorsurface and a substantially cylindrical outer surface'provided with aplurality of symmetrically disposed longitudinal grooves of uniform sizethroughout their length, extending along the greater portion of thelength of the tubular body, the aforesaid grooves being adapted toreceive nails or spikes to act as wedges and hold the tubular bodyfirmly in a central position in the cylindrical recess.

In testimony whereof I have hereunto set my hand inthe presence of twowitnesses,

ELIZABETH ALEXANDER, I. B. MOORE.

